CN104466777A - Solid-insulated ring main unit - Google Patents
Solid-insulated ring main unit Download PDFInfo
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- CN104466777A CN104466777A CN201410742245.1A CN201410742245A CN104466777A CN 104466777 A CN104466777 A CN 104466777A CN 201410742245 A CN201410742245 A CN 201410742245A CN 104466777 A CN104466777 A CN 104466777A
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- ring main
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- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 230000000007 visual effect Effects 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims description 65
- 239000007787 solid Substances 0.000 claims description 51
- 238000010009 beating Methods 0.000 claims description 34
- 239000004020 conductor Substances 0.000 claims description 28
- 238000012800 visualization Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000004146 energy storage Methods 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 16
- 210000000078 claw Anatomy 0.000 claims description 14
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- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 9
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- 230000008054 signal transmission Effects 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
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- 229910052751 metal Inorganic materials 0.000 abstract description 5
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- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fuses (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
A solid-insulated ring main unit comprises a fuse unit, an operation mechanism, a bus unit, a control room unit, a metal plate cabinet body, a pole column body, a visual window and a light-permeable window, wherein the visual window is formed in the front face of the metal plate cabinet body, the light-permeable window is formed in the pole column body at the back of the metal plate cabinet body, and the closing position of the visual window, the closing position of the light-permeable window and the closing position of an isolating switch share the same axis. According to the solid-insulated ring main unit, devices and connection relations which lower the overall reliability in existing product structures on the market are redesigned, complex linkage structures of various main parts are replaced, the man-machine interaction characteristics of equipment are improved, the defects of existing linkage structures on the market are overcome, safety and reliability are improved, and the cost is lowered.
Description
Technical field
The present invention relates to a kind of High voltage power supply equipment, particularly relate to a kind of high voltage switchgear for ring network power supply.
Background technology
Solid insulation ring main unit needs to meet high-grade industry standard and national standard guarantee reliability.In order to meet every mandatory national standards, ring main unit on market constantly adopts corrective measure to overcome technological deficiency, the overall structure of ring main unit is made to occur alienation gradually, new and old intermodule lacks unified mentality of designing, overall usability be can not be guaranteed, operability and man-machine interaction structure are also often perverse, extremely unfriendly to the attendant of equipment long-time O&M process, fail safe is low.
Existing solid insulation ring main unit mainly embodies the impact of specific aim improvement on overall performance in the following aspects:
As shown in Figure 1, current solid insulation ring main unit is made up of parts such as bus unit, control room unit, isolator operating mechanism, circuit interrupter grounding switch operating mechanism, panel beating cabinet, line cable, pole body, fuse units, and wherein circuit interrupter grounding switch operating mechanism comprises circuit breaker operation mechanism, earthing switch operating mechanism.
Panel beating cabinet, for encapsulating each parts such as bus unit, control room unit, isolator operating mechanism, circuit interrupter grounding switch operating mechanism, line cable and pole body, and to the supporting role of pole main body; Bus unit, is arranged on panel beating cabinet top, and being mainly used in links together two electric loops realizes the effect of electric energy transmitting; Control room cellular installation at panel beating cabinet top, before being positioned at bus unit; Control unit is the hinge of solid cabinet solid insulation ring main unit linear quadratic control; Isolator operating mechanism is arranged in panel beating cabinet, is positioned at the position below the unit of control room, assembles with pole body; Circuit interrupter grounding switch operating mechanism is arranged in panel beating cabinet, is positioned at the position below isolator operating mechanism, assembles with pole body; Line cable is arranged in panel beating cabinet, assembles with pole body; Pole body is fixed on the rear plate of panel beating cabinet by the connecting hole on pole body; Fuse is the protector of a kind of short circuit and overcurrent, and after it exceedes setting a period of time according to electric current, the heat self produced makes fuse melting, thus circuit is disconnected, and plays the protective effect to circuit and equipment.
In the isolator operation of current solid insulation ring main unit, operating personnel are when carrying out switch divide-shut brake, dynamic simulated direction board is with by mechanical rotation, represent that the conjunction of switch divides, under this mode of operation, with the naked eye can not observe directly the on/off switch state of isolating switch, and in real work, simulate direction board can lose simulation instruction effect due to the fault of isolator operating mechanism, cause operating rear isolating switch pointer and do not meet actual conditions, such as direction board display switch is in gate-dividing state, and in fact switch is in "on" position; What the isolation moving contact of such as switch did not separate completely with isolation fixed contact or separated again opens apart from large not, and operating personnel are owing to can not observe directly deciliter state of switch, be easy to produce and think that switch has operated the illusion put in place, cause line cable to occur the situation of interval hot line job, so just bring serious harm to the life of Operation and Maintenance personnel.
There is ground connection and close problem, electric Field Optimization problem and capacity issue in fuse unit.Fuse lower end ground connection in current solid insulation ring main unit realizes often through sheet metal overlapping mode or to the mode of ground connection cylinder applying insulating oil; And in these two kinds of methods, sheet metal overlapping mode, due to reasons such as technique are coarse, simple and crude, causes its ground connection poor performance, easily causes the human safety issues of operating personnel in operation; In addition, for the mode by ensureing insulation level to the ground connection cylinder applying insulating oil of fuse, once sealing goes wrong, or damaging appears in ground connection cylinder, insulating oil can produce the phenomenons such as leakage, and now the insulation level of fuse unit does not just reach safety value, can break down, capacity issue, volume is excessive, and the occasion stricter at assembling volume requirement can not be used.Electric Field Optimization problem, due to electric Field Optimization not, run in there will be electric discharge phenomena.
Existing operating mechanism comprises circuit breaker operation mechanism and earthing switch operating mechanism, Liang Tao mechanism realizes the breaking-closing operating of circuit breaker and earthed switch respectively, two operating mechanisms are independently installed and just needed two cover energy-storage systems, support amount of parts also increases greatly, thus make its manufacturing cost, workman assemble the amount of labour increase, the weight of two operating mechanisms increases, and volume is also huger; On the other hand, need between circuit breaker and earthed switch, form interlocking unit according to relevant national standard and carry out interlocked control, the generation of the human accident preventing workman's misoperation from causing, and use circuit breaker operation mechanism and earthing switch operating mechanism respectively, independently must do mechanical interlocking between operating mechanism at two and form interlocking unit, interlocking unit amount of parts is many also unreliable.
The ring main unit earthed switch of other companies often adopts grounding switch formula, drives grounding switch to complete closing operation fast by earthing switch operating mechanism.When there being earth fault to produce, ground short circuit can be caused to close, and when adopting grounding switch, utilize blade to rotate the certain speed of applying to close, this just creates very high requirement to operating mechanism and running part, and the overwhelming majority does not possess earth short circuit current repeatedly making capability, or twice earth short circuit current required that be up to state standards reluctantly closes number of times, this just runs to power distribution network and brings great hidden danger, and severe patient causes casualties the generation of accident.
Some like products do not have In-Line Temperature Measure System and mechanical property on-line monitoring system, can not the running status of real time on-line monitoring solid insulation ring main unit, can not control in rudiment by fault, prevent trouble before it happens.Although some products have In-Line Temperature Measure System and mechanical property on-line monitoring system, just simple collection signal, is transferred to administrative staff, can not accomplishes intelligentized on-line early warning, inline diagnosis.The temperature measurement on-line of many like products is also had to use wired, active technique, installation extremely inconvenient, even the phenomenons such as electric discharge, flashover may be caused owing to there being the existence of wire, therefore need badly and a kind ofly can provide rapidly correct judgement according to the signal collected, and make corresponding action, avoid the reliable solid insulation ring main unit of the generation of accident.
Summary of the invention
The object of this invention is to provide a kind of solid insulation ring main unit, solve existing equipment and carry out owing to lacking Uniting the technical problem that Whole Equipment reliability reduces after local improvement.
A kind of solid insulation ring main unit, comprises fuse unit, earthed switch, circuit breaker, panel beating cabinet, pole body, visualization window and optical transmission window, and visualization window arranges and is arranged on the panel beating cabinet in front; Optical transmission window is arranged on the pole body at panel beating cabinet rear portion; The make position of described visualization window, optical transmission window and isolating switch on the same axis.
Described fuse unit comprises fuse, drive system, striker mechanism, fuse unit body; Drive system comprises ground connection copper rod; Striker mechanism comprises striker mechanism claw and strutting piece, and fuse unit body comprises fuse unit, ground connection cylinder, Connection Block, tube connector, wire outlet seat, outlet casing tube, fuse unit base; Fuse unit is tubular structure, and ground connection cylinder is tubular structure, and Connection Block is cuboid, and tube connector is pipe, and wire outlet seat is cylinder, and its sidewall is " U " shape wall, and outlet casing tube has the truncated conical shape of screwed hole in being; Ground connection cylinder, Connection Block and wire outlet seat are all arranged on the surface of fuse unit; Tube connector is arranged on the end face of Connection Block; Outlet casing tube is arranged on wire outlet seat;
Fuse is arranged in the fuse unit of fuse unit body; Striker mechanism is fixed on the nozzle of fuse unit by strutting piece; The joint at fuse two ends is connected with fuse unit base, striker mechanism claw respectively; Ground connection copper rod in drive system puts in the ground connection cylinder of fuse unit body.
Circuit breaker and earthed switch are controlled by circuit breaker and earthed switch integral operating mechanism, and circuit breaker and earthed switch integral operating mechanism comprise energy-storage units, circuit breaker gear unit, earthed switch gear unit, support unit, on/off switch lock catch unit, on/off switch trip unit, interlocking unit;
On/off switch lock catch unit comprises combined floodgate semiaxis, breaker open operation semiaxis, grounding switch tripping semiaxis;
On/off switch trip unit comprises closing coil, breaker closing button, earthed switch switch knob, breaker open operation button, grounding switch tripping button; Interlocking unit comprises interlocking plectrum, interlocking spring;
Breaker closing button, earthed switch switch knob are mechanically connected with combined floodgate semiaxis respectively, breaker open operation semiaxis is connected with breaker open operation push-button mechanical, grounding switch tripping semiaxis is connected with grounding switch tripping push-button mechanical, and combined floodgate semiaxis, breaker open operation semiaxis, grounding switch tripping semiaxis and circuit breaker gear unit, earthed switch gear unit are mechanically connected; Interlocking plectrum is used for locking breaker closing button or earthed switch switch knob.
Described earthed switch comprises ground connection vacuum interrupter, pole body, earthing bar connection inserting part, ground insulation rod assembly, ground connection are flexible coupling, circuit interrupter grounding switch integrated operating mechanism;
One end of described ground insulation rod assembly is connected with ground connection movable end of vacuum arc extinguishing chamber bar and ground connection being flexible coupling is pressed on ground connection movable end of vacuum arc extinguishing chamber bar, and the other end is connected with circuit interrupter grounding switch integrated operating mechanism by connecting pin, transmission main shaft.
Solid insulation ring main unit of the present invention also comprises temperature transducer group, mechanical property transducer, signal transmission system, background processor; Described temperature transducer group, mechanical property transducer are arranged in panel beating cabinet and corresponding parts are connected with the signal input part of signal transmission system, the signal output part of described signal transmission system is electrically connected with background processor, and described background processor is connected with panel beating cabinet; Described temperature transducer group comprises bus temperature transducer, isolation temperature transducer, circuit breaker temperature transducer, cable temperature transducer; Described bus temperature transducer is arranged on bus, and described isolation temperature transducer is arranged on isolating switch, and described circuit breaker temperature transducer is installed on-board the circuit breaker, and described cable temperature transducer is arranged on line cable; Described mechanical property transducer is arranged on the end of circuit breaker adjusting screw(rod).
Solid insulation ring main unit of the present invention is to deferring to Uniting thinking, the device and annexation that reduce global reliability index in ring main unit existing structure are redesigned, substituted for complicated circuit and the linkage structure of each major part, improve equipment man-machine interaction feature, overcome the defect of original linkage structure, be specifically:
The present invention carries light inlet window and visualization window, need not the external light source such as operating personnel's flashlight to irradiate solid insulation ring main unit inner, just with the naked eye observe the on/off switch state of isolating switch by visualization window directly, clearly, avoid the generation of the electric shock accidents produced because isolating switch on/off switch state does not know; In the visual window that visualization window adopts, arrange because fixed head is equal with ground floor boss thickness, around ground floor boss the visual window seal groove, the second layer boss that are placed with sealing ring and the edge shape of second layer boss higher than ground floor boss with can the shape of viewport consistent, therefore when visual window cover can on viewport time, in consistent manner second layer boss can be entangled by viewport, avoiding can viewport light leak, affect observing effect, simultaneously, second layer boss can be concordant with panel beating cabinet panel, makes cabinet panel more smooth, attractive in appearance; In addition, due to visual window employing is the material making that light transmittance reaches 97%, therefore greatly can improve observing effect; Due to the employing of visualization window baffle plate is that the material preventing light source from spreading makes, and therefore can effectively prevent incident light from spreading, put forward the definition of observation; Because light inlet window employing light transmittance reaches the material making being more than or equal to 97%, therefore can improve incident intensity, thus improve the brightness of solid insulation ring main unit inside, contribute to the closure state observing isolating switch; Due to sealing ring employing is the sealing ring be made up of ethylene propylene diene rubber material, therefore greatly improves the seal degree between light inlet window and pole body.
In fuse unit of the present invention, due to application screw thread rotation withdrawing pattern technology, screw thread is formed at the inner surface of ground connection cylinder, improve insulating surface creepage distance, therefore ground connection cylinder does not need to add insulating oil to improve insulation property, thus just avoids the phenomenon causing producing insulating oil leakage because adopting insulating oil; Because tube connector one end of fuse unit only need be connected with solid insulation ring main unit sleeve pipe by the present invention, the rear plug of the other end is blocked, and ground connection copper rod is put into ground connection cylinder, just can start working, and therefore fuse unit is installed more convenient, quick.
Because each part of this fuse unit fuse unit body is all cast in together with epoxy resin, therefore its compact conformation, compact, weight is low, only needs a comparatively narrow space.
Body fuse unit body in this fuse unit and inserts design through simulation optimization, and during operation, Electric Field Distribution is even, and partial discharge quantity is less than 5pc, meets national relevant regulations, and fail safe reliability is high; Fuse unit body outer surface spraying semiconductor or conductor coatings, operating personnel can directly touch fuse unit surface.
In addition in fuse unit, interlocking is reliable, ground connection is reliable, and be directly connected with ground connection main shaft by drive system and blocking lever, parts used are less, and reliability greatly improves; When fuse unit normally runs, need not insulating oil be applied, namely can ensure that electric insulation gap, electric insulation gap can reach 135mm; End cover can be applied in ground connection cylinder outer end, prevent foreign matter, dust, steam etc. from entering ground connection cylinder.
The present invention's innovation circuit breaker and earthed switch two operating mechanisms are united two into one, carry out integrated design optimization to integrate, share a set of energy-storage system, decrease a set of energy-storage system, decrease the parts of support unit, make its structure simpler, weight can reduce more than 20%, and volume is smaller and more exquisite, and reduces manufacturing cost, decrease the assembling amount of labour of workman, create good benefit; Circuit breaker and earthed switch integral operating mechanism achieve interlocked control, namely five anti-interlock requirements of relevant national standard are met, do not need independently doing Interlocking System again between circuit breaker and earthed switch respectively, improve the reliability of product greatly, reduce the generation of operating personnel's human accident.
Vacuum interrupter is applied on solid insulation ring main unit by the present invention, possesses earth short circuit current repeatedly making capability.Owing to adopting vacuum interrupter as the core component of earthed switch, adopt vacuum as arc-extinguishing medium, the advantages such as clearance between open contacts is little, the arcing time is short, action is fast, rated short circuit making current number of times is 20 to 50 times.China's concerned countries standard and power industry standard require that the number of times that grounded circuit closes short circuit current is 2 times, vacuum interrupter is applied on earthed switch, this number of times improves greatly, improve the reliability and safety of operation of power networks, stop the generation of dependent failure, adopted circuit interrupter grounding switch integrated operating mechanism to alleviate the weight of solid insulation ring main unit simultaneously, reduce volume, reduce cost, further increase fail safe.
The present invention's intelligence solid insulation ring main unit, the interpolation of In-Line Temperature Measure System can carry out 24 hours unremitting on-line checkingi to the temperature conditions of the wire tie point of ring main unit and contact, can pinpoint the problems at any time, and process problem, controls fault in rudiment.Equally, the conjunction each time that mechanical property transducer can record circuit breaker divides operation, analyzes relevant physical parameter, and makes contrast judgement, and administrative staff can recognize the running status of ring main unit by data; Temperature measurement on-line transducer can adopt passive wireless technologies, and passive techniques need not use battery or induction power taking, completely non-maintaining, uses more convenient.Wireless technology can the wire transmission technology of abandoning tradition, prevents the phenomenons such as the electric discharge because transfer wire causes, flashover; Mechanical property transducer directly connects with the end of circuit breaker, by the motion secondary conversion of part by circuit breaker, more directly reliably, need not install also convenient, only need clamp nut fastening.
Below in conjunction with accompanying drawing, solid insulation ring main unit embodiment of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the structure cutaway view of existing solid insulation ring main unit;
Fig. 2 is the cutaway view of the solid insulation ring main unit of visualization window and optical transmission window;
Fig. 3 is the stereogram after visualization window is installed;
Fig. 4 is the stereogram of this visual window;
Fig. 5 is the stereogram of visualization window baffle plate;
The profile of optical transmission window when Fig. 6 is on installation solid insulation ring main unit;
Fig. 7 is the front view of light inlet window;
Fig. 8 is the index path of solid insulation ring main unit;
Fig. 9 is the cutaway view of the fuse unit be arranged on solid insulation looped network;
Figure 10 is the stereogram of fuse unit body;
Figure 11 is the front view of fuse unit body;
The A-A direction cutaway view that Figure 12 is the body of fuse unit shown in Fig. 5;
Figure 13 is the structural representation of fuse outlet collar;
The B-B direction cutaway view that Figure 14 is the body of fuse unit shown in Fig. 5;
Figure 15 is the structural representation of ground connection claw;
Figure 16 is the Facad structure schematic diagram of circuit interrupter grounding switch integrated operating mechanism;
Figure 17 is the perspective view of circuit interrupter grounding switch integrated operating mechanism;
Figure 18 is the end view of circuit interrupter grounding switch integrated operating mechanism;
Figure 19 is the vertical view of circuit interrupter grounding switch integrated operating mechanism;
Figure 20 is solid insulation ring main unit internal structure schematic diagram;
Figure 21 is the structure cutaway view of the solid insulation ring main unit after improving.
Embodiment
As shown in Figure 2, the solid insulation ring main unit of the present embodiment comprises fuse unit, bus unit a1, control room unit a2, isolator operating mechanism a3, circuit interrupter grounding switch integrated operating mechanism a4, panel beating cabinet a5, line cable a6, pole body a7, visualization window a8 and optical transmission window a9; Wherein bus unit a1, control room unit a2, isolator operating mechanism a3, circuit interrupter grounding switch integrated operating mechanism a4, line cable a6 and pole body a7 arrange and are encapsulated in panel beating cabinet a5; Visualization window a8 arranges and is arranged on the panel beating cabinet a5 in solid insulation ring main unit front, and with the make position of isolating switch (namely isolating moving contact a32 and the position isolating fixed contact a33 and contact) on the same axis; Keep the make position coaxial line with visualization window a8, isolating switch, optical transmission window a9 is arranged and is arranged on pole body a7; After light enters from optical transmission window a9, along moving contact and fixed contact of isolating switch make position, mechanism mounting panel perforate a35, visualization window a8 place axis propagation, namely operating personnel can be observed the on/off switch state of isolating switch.
Be below the specific descriptions of visualization window a8 and optical transmission window a9:
As shown in Figure 3, visualization window a8 comprise can viewport a81, visual window a82, visualization window baffle plate a83; Wherein, the number of visual windows a81 is identical with the number of isolating switch moving contact a32 (or fixed contact a33), visual windows a81 is out the through hole (such as round rectangle through hole, orthogonal rectangle through hole, manhole, ellipse hole, square through-hole etc.) on the panel beating cabinet a5 in solid insulation ring main unit front, can the closed position of the position of viewport a81 on panel beating cabinet a5 and the isolating switch in panel beating cabinet a5, mechanism mounting panel perforate a35 on the same axis; In addition, each the panel beating cabinet a5 around viewport a81 edge can be equipped with several screw holes;
As shown in Figure 4, visual window a82 adopts light transmissive material to make, especially high transmission rate material (such as Merlon); Visual window a82 comprises fixed head a821, visual window seal groove a822, ground floor boss a823 and second layer boss a824, wherein fixed head a821 is round rectangle panel (also can be orthogonal rectangle plate, circular slab, elliptical flat-plate and square plate etc.), fixed head a821 is provided with several through holes, the position distribution of through hole near its circumference place, fixed head a821 edge, the number of through hole with can stud number around viewport a81 consistent; Visual window seal groove a822, ground floor boss a823 and second layer boss a824 all process on the surface one of fixed head a821; Visual window seal groove a822 is closed seal groove, for placing sealing ring; Ground floor boss a823 is positioned at the enclosed region of visual window seal groove a822, and the thickness of ground floor boss a823 is equal with the thickness of fixed head a821; Second layer boss a824 is positioned on ground floor boss a823, and second layer boss a824 and ground floor boss a823 forms intersecting body, the edge shape of second layer boss a824 with can the shape of viewport a81 consistent (such as with can viewport a81 correspond to round rectangle, orthogonal rectangle, circle, ellipse, square etc.), when visual window a82 cover can on viewport a81 time, second layer boss a824 enters can viewport a81, second layer boss a824 is concordant with panel beating cabinet panel, can be entangled by second layer boss a824 in consistent manner by viewport a81;
As shown in Figure 5, visualization window baffle plate a83 adopts the material preventing light source from spreading to make, such as SMC composite material (sheet molding compound Sheet molding compound is called for short SMC); Visualization window baffle plate a83 comprises base plate a831 and baffle plate a832;
Wherein, base plate a831 is round rectangle panel (also can be orthogonal rectangle panel, round panel, oval panel and square panel etc.), base plate a831 is provided with several through holes, the position distribution of through hole near its circumference place, base plate a831 edge, the number of through hole and the through hole on a821, can the number of stud around viewport a81 consistent;
Baffle plate a832 is column-shaped barrel, this column-shaped barrel port, namely baffle plate a832 inside edge a8321 shape with can the edge shape of viewport a81 consistent; Keep baffle plate a832 and the concentricity axle of base plate a831, baffle plate a832 is passed through with base plate a831 phase, Xiang Guanhou, the base plate a831 partial removal that baffle plate a832 port is surrounded, form hollow and pass through body.
As shown in Figure 6, optical transmission window a9 comprises loophole a91, light inlet window a92; Wherein, the number of loophole a91 is equal with the number of isolating switch moving contact a32 (or fixed contact a33), and loophole a91 is the pole body a7 circular hole that rear end is reserved when integration is built; When pole body a7 is assembled in solid insulation net cashier's office in a shop time, must keep the loophole a91 on pole body a7 and the position that the isolating switch in panel beating cabinet a5 closes, mechanism mounting panel perforate a35 and corresponding can viewport a81 position on the same axis; The diameter of loophole a91 is more than or equal to 60mm; Pole body a7 around each loophole a91 is equipped with several screwed holes;
As shown in Figure 7, light inlet window a92 is square panel, the one side of this square panel is processed with a closed light inlet window seal groove a921, light inlet window sealing ring a93 is put into during for installing, sealing ring a93 adopts the encapsulant of high erosion-resisting characteristics to make, and especially adopts the sealing ring that ethylene propylene diene rubber material is made; Light inlet window a92 adopts light transmissive material to make, especially high transmission rate material (such as light rate reaches the polycarbonate plate of 97%); Light inlet window a92 is provided with several through holes, the region of position distribution between the edge of light inlet window a92 and light inlet window seal groove a921 of through hole, and the screwed hole number around the number of through hole and loophole a91 is equal; During installation, keep each hole corresponding, light inlet window a92 is covered and fixes with bolt tightening on loophole a91.
As shown in Figure 8, the using method of the present embodiment comprises the following steps:
Step S1: on panel beating cabinet a5, selecting to arrange with the position of mechanism mounting panel perforate a35, isolating switch make position coaxial line can viewport a81; On pole body a7, select with can viewport a81, mechanism mounting panel perforate a35, isolating switch make position coaxial line position, loophole a91 is set, make can viewport a81, mechanism mounting panel perforate a35, isolating switch make position, loophole a91 is in same light path;
Step S2: make the second layer boss a824 of visual window a82 and can coincide and flush by viewport a81, being arranged on by visual window a82 and visualization window baffle plate a83 can on viewport a81; Light inlet window a92 is arranged on loophole a91 by combination seal circle a93;
Step S3: visualization window a8 and optical transmission window a9 is mounted on after on solid insulation ring main unit, when extraneous lamp (or adding LED source of parallel light etc. on rear side of optical transmission window a9) enters from optical transmission window a9, along moving contact and fixed contact of isolating switch make position, mechanism mounting panel perforate a35, broadcast when visualization window a8 place light path passes, operator stands in before solid insulation ring main unit, the relative position of isolation moving contact a32 and isolation fixed contact a33 is observed clearly by visualization window a8, can find out whether isolating switch is in combined floodgate or gate-dividing state clearly.
As shown in Figure 9, fuse unit comprises fuse b1, drive system b2, striker mechanism b3, fuse unit body b4; Be below the detailed description of each part of the present embodiment:
Fuse b1 selects model to be the fuse of XRNT-12.
Ground connection blocking lever b24 in drive system b2, employing b45 steel are made through heat treatment, and ground connection copper rod b25 material is brass H65.
As shown in Figure 10, shown in Figure 11, fuse unit body b4 be formed by fuse unit b41, ground connection cylinder b42, Connection Block b43, tube connector b44, wire outlet seat b45 and outlet casing tube b46 pass through body; Fuse unit b41 is tubular structure, this tubular structure is obtained after processing by cylindrical tube, cylindrical tube, after processing, on the outer wall closing on its tube port position, leaves one and is looped around boss on outer wall, i.e. the first boss b411, in addition, cylindrical tube through processing after, on its external wall, leave the second boss b412, the second boss b412 is circular arc body; Second boss b412 and the first boss b411 is contour, and is connected as a single entity; Ground connection cylinder b42 is tubular structure, and the outer wall of this tubular structure is " U " shape wall, and inwall is cylindrical wall, and ground connection cylinder b42 and the second convex b412 is wide; Adopt screw thread rotation withdrawing pattern technology to form screw thread at the inwall of ground connection cylinder b42, improve insulating surface creepage distance; Ground connection cylinder b42 and the second boss b412 is connected in one; Connection Block b43 is cuboid, is fixed on fuse unit b41 on the surface, is connected as a single entity with fuse unit b41; Tube connector b44 is pipe, is fixed on the end face of Connection Block b43, is connected as a single entity with Connection Block b43; The solid of wire outlet seat b45 to be sidewall be " U " shape wall, is fixed on the first boss b411 according to the surface at " U " word mouth place, is connected as a single entity with the first boss b411; Outlet casing tube b46 has the truncated conical shape of M16 screwed hole in being;
As shown in figure 12, fuse unit body b4 also comprises fuse unit base b48, fuse outlet collar b49, fuse inlet wire conductor b4A and cable outlet conductor b4B; Epoxy resin b47 is adopted to be cast in fuse unit body b4 by fuse unit base b48, fuse outlet collar b49, fuse inlet wire conductor b4A, cable outlet conductor b4B; Fuse unit base b48 is cylinder, three internal thread screw holes being set on its surface, for connecting fuse joint, thus playing the effect of fixing fuse b1, fuse unit base b48 is cast in the inner bottom part of fuse unit b41, and the inwall bottom fuse unit b41 is exposed on its surface;
In conjunction with such as Figure 13, fuse outlet collar b49 are the cambered inwards pipe of b491 in the middle part of a kind of tube wall; Fuse outlet collar b49 is cast in the barrel of fuse unit b41, and the first boss b411 on its position and fuse unit b41 is corresponding, keeps b491 in the middle part of the tube wall of fuse outlet collar b49 to expose the inwall of fuse unit b41 when building; Fuse inlet wire conductor b4A has the copper bar that diameter is 16mm through hole, keep fuse inlet wire conductor b4A coaxial with Connection Block b43, fuse inlet wire conductor b4A is built and is fixed in the middle part of Connection Block b43, and be connected with fuse unit base b48 by the conductor be cast in fuse unit body b4; Cable outlet conductor b4B is the pipe that one end has internal thread interface, keep cable outlet conductor b4B coaxial with outlet casing tube b46, being built by cable outlet conductor b4B is embedded in outlet casing tube b46, and during use, cable outlet conductor b4B is used for external line cable; Cable outlet conductor b4B is connected with fuse outlet collar b49 by the conductor be cast in fuse unit body b4;
As shown in figure 14, fuse unit body b4 also comprises ground connection claw b4C and earthing conductor b4D;
In conjunction with Figure 15, ground connection claw b4C by the pipe of only one end open through being processed to form, the not opening one end of this pipe is the base of ground connection claw b4C, in the middle part of this pipe, the internal diameter of inwall is greater than the internal diameter of openend inwall, at this circular tube open end, axis along this pipe is cut, and forms b4 symmetrical point of claw b4C1 stood on grounding clamp pawl base b4C2; Keep ground connection claw b4C coaxial with ground connection cylinder b42, with epoxy resin b47, the base of ground connection claw b4C is built the bottom being fixed on ground connection cylinder b42; Be cast in earthing conductor b4D in fuse unit body b4 for connecting base and the fuse outlet collar b49 of ground connection claw b4C.
When fuse unit is used on solid insulation ring main unit, annexation is as follows:
Solid insulation ring main unit sleeve pipe b5 is inserted in by tube connector b44 one end of fuse unit body b4, and fixes with M16 trip bolt b7; The rear plug b6 of the tube connector b44 other end blocks; Fuse b1 is arranged in the fuse unit b41 of fuse unit body b4; Striker mechanism b3 is arranged on the nozzle of fuse unit b41 by strutting piece b31; The joint at fuse b1 two ends is connected with fuse unit base b48, striker mechanism claw b32 respectively; Blocking lever b8 one end is fixed by the springboard b33 of striker mechanism b3; The other end and the blocking lever plectrum b81 of blocking lever b8 fix; Ground connection copper rod b21 in drive system b2 puts in the ground connection cylinder b42 of fuse unit body b4; During use, the external line cable of cable outlet conductor b4B of fuse unit body b4.
The course of work of fuse unit in the present embodiment:
When the electric current on fuse b1 exceedes setting, fuse quick fuse; Wherein, striker mechanism b3 rushes open by the one end be connected with striker mechanism b3, and striker mechanism b3 moves, and striker b34 clashes into springboard b33, and springboard b33 makes blocking lever b8 move, and blocking lever b8 contacts with the interlocking plectrum of circuit interrupter grounding switch integrated operating mechanism.On-load switch is made automatically to carry out sub-switching operation, then earthed switch switch knob is pressed with hand, start drive system b2, ground connection copper rod b21 is inserted in the ground connection claw b4C of fuse unit by machine driving by drive system b2 grounding switch main shaft, now earthed switch is also in closing position, this completes the ground connection operation at the line two ends of fuse unit, residual charge is discharged, ensures the personal safety of operating personnel.
In the present embodiment, each part of fuse unit body b4: fuse unit b41, ground connection cylinder b42, Connection Block b43, tube connector b44, wire outlet seat b45 and outlet casing tube b46 all adopt epoxy resin to build and form, and the outer surface of fuse unit body b4 spraying semiconductor or conductor coatings, thickness is about 0.15-0.3mm fuse unit body b4 and adopts epoxy resin b47, therefore through simulation optimization, fuse unit body b4 meets partial discharge quantity under 13.2 kilovoltages and is less than 5pc, power-frequency withstand voltage is the performance of 45Kv/min, and possesses following machinery and electric property:
According to Figure 16 to Figure 19, circuit interrupter grounding switch integrated operating mechanism of the present invention to be described in detail below.
Circuit interrupter grounding switch integrated operating mechanism, comprises energy-storage units, circuit breaker gear unit, earthed switch gear unit, on/off switch lock catch unit, on/off switch trip unit, mechanical interlocking unit, support unit;
Energy-storage units comprises manual energy storage unit, electric energy-stored unit, energy-stored spring 9, driving gear set; Manual energy storage comprises power shaft, worm screw, worm gear; Electric energy-stored system comprises energy storage motor 7, energy storage travel switch; Circuit breaker gear unit comprises a set of cam, quadric chain, output toggle arm, and earthed switch gear unit comprises a set of cam identical with circuit breaker gear unit, quadric chain, output toggle arm;
On/off switch lock catch unit comprises combined floodgate semiaxis 4, breaker open operation semiaxis 1, grounding switch tripping semiaxis 8; Trip unit comprises closing coil, breaker closing button 3, earthed switch switch knob 12, breaker open operation button 2, grounding switch tripping button 10; Circuit breaker and the public combined floodgate semiaxis of earthed switch 4, closing coil.Interlocking unit comprises interlocking plectrum 11 and interlocking spring; Support unit comprises supporting bracket and support column is formed.
Supporting bracket comprises upper backup pad 14-1, middle supporting bracket 14-2, lower supporting plate 14-3, support column comprises the first support column 16-1, the second support column 16-2, the 3rd support column 16-3, upper, middle and lower three pieces of supporting brackets stack from top to bottom successively, leave certain gap between any two, first, second, third support column runs through the whole support unit that three pieces of supporting brackets form circuit interrupter grounding switch operating mechanism jointly respectively;
Driving gear set comprises the first gear 15-1, the second gear 15-2, the 3rd gear 15-3, the 4th gear 15-4, driving gear set is positioned on the upper surface of upper backup pad 14-1, first gear 15-1 engages with the second gear 15-2, second gear 15-2 engages with the 3rd gear 15-3, and the 3rd gear 15-3 engages with the 4th gear 15-4; The bearing of the first gear 15-1 is through three pieces, upper, middle and lower supporting bracket, one end of energy-stored spring 9 is connected with the second support column 16-2, the other end is connected by the bearing of connector with the first gear 15-1, energy storage motor 7 is arranged on the lower surface of lower supporting plate 14-3, and the rotating shaft of energy storage motor 7 is connected with the bearing of the 4th gear 15-4; Combined floodgate semiaxis 4 is arranged between upper backup pad 14-1 and middle supporting bracket 14-2, and one end is positioned at the side, upper surface of upper backup pad 14-1, breaker open operation semiaxis 1 is arranged between upper backup pad 14-1 and middle supporting bracket 14-2, and one end is positioned at the side, upper surface of upper backup pad 14-1, grounding switch tripping semiaxis 8 is arranged between lower supporting plate 14-3 and middle supporting bracket 14-2, and one end is positioned at the side, lower surface of lower supporting plate 14-3;
Breaker open operation button 2 is set between upper backup pad 14-1 and middle supporting bracket 14-2, breaker closing button 3 respectively with breaker open operation semiaxis 1, (when pressing breaker open operation button 2, breaker open operation semiaxis 1 rotates the corresponding mechanical connection of combined floodgate semiaxis 4, when pressing breaker closing button 3, combined floodgate semiaxis 4 rotates), grounding switch tripping button 10 is set between lower supporting plate 14-3 and middle supporting bracket 14-2, earthed switch switch knob 12 respectively with grounding switch tripping semiaxis 8, (when pressing grounding switch tripping button 10, grounding switch tripping semiaxis 8 rotates the corresponding mechanical connection of combined floodgate semiaxis 4, when pressing earthed switch switch knob 12, combined floodgate semiaxis 4 rotates),
Plectrum 11 of interlocking is provided with between breaker open operation button 2, breaker closing button 3 and grounding switch tripping button 10, earthed switch switch knob 12, interlocking plectrum 11 can slide up and down, when plectrum 11 of interlocking pushes top, (now circuit breaker can not work by stuck for breaker closing button 3, earthed switch is only had to work), when plectrum 11 of interlocking is positioned at below by stuck for earthed switch switch knob 12 (now earthed switch can not work, and only has circuit breaker to work);
Circuit breaker gear unit, earthed switch gear unit are mechanically connected with combined floodgate semiaxis 4, breaker open operation semiaxis 1, grounding switch tripping semiaxis 8 respectively.
Carrying out circuit breaker or earthed switch conjunction timesharing, manually energy-storage units or electric energy-stored unit are to energy-stored spring 9 energy storage, then select to carry out circuit breaker or earthed switch conjunction point operation by interlocking unit, when interlocking plectrum 11 being allocated to below, now can only carry out circuit breaker and close a point operation, earthed switch gear unit is now lost efficacy, this ensure that the correctness on operation logic, effectively prevent the accident caused by operating personnel's misoperation, press breaker closing button 3 or rotate to the closing coil now combined floodgate semiaxis 4 that is energized, energy-stored spring 9 releases energy, energy-stored spring 9 becomes free state from elongation state, energy-stored spring drives interlock rod member to rotate, interlock rod member is equipped with cam, cam rotates, drive double leval jib action, double leval jib end is output toggle arm, output toggle arm is by being mechanically attached to circuit breaker, complete breaker switching-on operation, in making process, sluice separating spring becomes extended state by nature, storage elasticity potential energy, for next step breaker open operation provides power, under the effect of breaker open operation semiaxis, keep "on" position, when after breaker closing, press breaker open operation button 2 or to breaker open operation coil electricity, now breaker open operation semiaxis 1 rotates, breaker open operation spring and contact spring have released energy sub-switching operation,
Interlocking plectrum 11 is allocated to top equally, circuit breaker gear unit will lose efficacy, now can only carry out the operation of earthed switch on/off switch, press earthed switch switch knob 12 or rotate to the closing coil now combined floodgate semiaxis 4 that is energized, energy-stored spring 9 releases energy, carry out earthed switch closing operation, after earthed switch closes a floodgate, press earthed switch switch knob 10 or give grounding switch tripping coil electricity, now grounding switch tripping semiaxis 8 rotates, and grounding switch tripping spring and contact spring have released energy sub-switching operation.
As shown in figure 20, the earthed switch in above-described embodiment comprises ground connection vacuum interrupter 02, pole body 03, earthing bar connection inserting part 04, ground insulation rod assembly 06, ground connection are flexible coupling 05, circuit interrupter grounding switch integrated operating mechanism 07.
Ground connection vacuum interrupter 02 selects model to be the vacuum interrupter of TD-12/630-20D, and have the advantages such as clearance between open contacts is little, the arcing time is short, action is fast, rated short circuit making current number of times is 20 to 50 times.
One end of ground insulation rod assembly 06 is connected with ground connection vacuum interrupter 02 moved end bar and ground connection is flexible coupling and 05 is pressed on the bar of ground connection vacuum interrupter 02 moved end, and the other end is connected with circuit interrupter grounding switch integrated operating mechanism 07 by the first connecting pin, the first transmission main shaft; Ground insulation rod assembly 06 comprises insulated tension pole, insulated tension pole inserts, contact stage clip, contact compression spring sleeve, and wherein insulated tension pole adopts SMC material, and applies full skirt process at outer surface, increases its surface creepage distance, improves insulating reliability.Circuit interrupter grounding switch integrated operating mechanism 07 have lightweight, volume is little and circuit breaker, earthing switch operating mechanism unite two into one, the advantage such as safe and reliable; Ground connection 05 material that is flexible coupling is 0.035mm red copper foil (red copper foil possesses good conductivity, thermal conductivity, ductility and not only meets conduction demand but also contribute to heat radiation), and earthing bar connection inserting part 04 material is T2Y.
A kind of solid insulation ring main unit comprises ground connection vacuum interrupter 02, pole body 03, earthing bar connection inserting part 04, ground insulation rod assembly 06, ground connection are flexible coupling 05, circuit interrupter grounding switch integrated operating mechanism 07, also comprises breaker vacuum arc control device 01, insulating pull rod for breaker assembly 08, circuit breaker be flexible coupling 09.
Breaker vacuum arc control device 01, ground connection vacuum interrupter 02 all select model to be the vacuum interrupter of TD-12/630-20D;
One end of ground insulation rod assembly 06 is connected with ground connection vacuum interrupter 02 moved end bar and ground connection is flexible coupling and 05 is pressed on the bar of ground connection vacuum interrupter 02 moved end, and the other end is connected with circuit interrupter grounding switch integrated operating mechanism 07 by the first connecting pin, the first transmission main shaft; One end of insulating pull rod for breaker assembly 08 is connected with breaker vacuum arc control device 01 moved end bar and is flexible coupling by circuit breaker and 09 is pressed on the bar of breaker vacuum arc control device 01 moved end, and the other end is connected with circuit interrupter grounding switch integrated operating mechanism 07 by the second connecting pin, the second transmission main shaft; Ground insulation rod assembly 06 is identical with insulating pull rod for breaker assembly 08 comprises insulated tension pole, insulated tension pole inserts, contact stage clip, contact compression spring sleeve respectively, wherein insulated tension pole adopts SMC material, and apply full skirt process at outer surface, increase its surface creepage distance, improve insulating reliability.Circuit interrupter grounding switch integrated operating mechanism 07 have lightweight, volume is little and circuit breaker, earthing switch operating mechanism unite two into one, the advantage such as safe and reliable; Circuit breaker is flexible coupling 09, ground connection is flexible coupling, and 05 material is 0.035mm red copper foil, and earthing bar connection inserting part 04 material is T2Y.
When solid insulation ring main unit normally runs, earthed switch is in gate-dividing state, and now grounded circuit is in off-state, when operating personnel open cable chamber door carry out cable maintenance time, needing closes a floodgate earthed switch connects grounded circuit, the personal safety of such guarantee operating personnel.Grounded circuit conducting operating process, first stored energy operation is carried out to circuit interrupter grounding switch operating mechanism 07, interlocking plectrum 11 is allocated to top, press earthed switch switch knob 12, or be energized to closing coil, now combined floodgate semiaxis 4 rotates, energy-stored spring 9 releases energy, drive the action of earthed switch gear unit, by ground insulation rod assembly 06, ground connection vacuum interrupter 01 moved end is closed with the speed of 0.65 ± 0.25m/s, now grounded circuit is in conducting state, completes an earthed switch closing operation.
Circuit interrupter grounding switch integrated operating mechanism 07 innovation circuit breaker and earthed switch two operating mechanisms are united two into one, carry out integrated design optimization to integrate, share a set of energy-storage system, decrease a set of energy-storage system, decrease the parts of support unit, make its structure simpler, weight can reduce more than 20%, and volume is smaller and more exquisite, and reduces manufacturing cost, decrease the assembling amount of labour of workman, create good benefit; Circuit breaker and earthed switch integral operating mechanism achieve interlocked control, meet five anti-interlock requirements of relevant national standard, do not need independently between circuit breaker and earthed switch, doing Interlocking System more respectively, improve the reliability of product greatly, reduce the generation of operating personnel's human accident.
What above-described embodiment was innovated is applied in the operation of earthed switch on/off switch by vacuum interrupter, vacuum interrupter has 20 to 50 rated short circuit making current number of times, substantially increase the reliability and safety that earthed switch closes, reduce due to earthed switch can not close short circuit current cause contingency occurrence probability.
As shown in figure 21, solid insulation ring main unit comprises panel beating cabinet a5, temperature transducer group, mechanical property transducer 006, signal transmission system, background processor; Described temperature transducer group, mechanical property transducer 006 are arranged on panel beating cabinet a5, described temperature transducer group, mechanical property transducer 006 are connected with the signal input part of signal transmission system, and the signal output part of signal transmission system is connected with background processor;
Described temperature transducer group comprises bus temperature transducer 002, isolation temperature transducer 003, circuit breaker temperature transducer 004, cable temperature transducer 005;
Bus temperature transducer 002 is arranged on bus 008, and isolation temperature transducer 003 is arranged on isolating switch, and circuit breaker temperature transducer 004 is installed on-board the circuit breaker, and cable temperature transducer 005 is arranged on line cable 007;
Mechanical property transducer 006 is arranged on the end of circuit breaker adjusting screw(rod).
Temperature transducer group can choose wired temperature sensor or radio temperature sensor.
Mechanical property transducer 006 can select grating sensor or electric resistance sensor.
At bus, line cable, the pre-buried temperature transducer of circuit breaker and isolating switch place, the variations in temperature that temperature transducer Real-Time Monitoring is various, and be translated into the signal of telecommunication and pass to daemon software by data transmission system (can adopt wireless, wired etc.), historical signal in the temperature signal of collection and database is made contrasting and is judged by daemon software, or design temperature maximum, can be reported to the police by background system once exceed set point, anticipation in advance and prevention ring main unit fault.
Mechanical property sensor is added at circuit breaker adjusting screw(rod) end, the conjunction that real-time online detects circuit breaker each divides action, detect on/off switch speed, the excess of stroke, open the critical mechanical properties parameters such as distance, bounce-back, spring, and above physical parameter is converted into digital signal and passes to daemon software by data transmission system (can adopt wireless, wired etc.), historical signal in the signal of collection and database is made contrasting and is judged by same daemon software, anticipation in advance and prevention ring main unit fault.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection range that claims of the present invention determines.
Claims (10)
1. a solid insulation ring main unit, comprise fuse unit, operating mechanism, bus unit (a1), control room unit a2, panel beating cabinet (a5) and pole body (a7), it is characterized in that: also comprise visualization window (a8) and optical transmission window (a9), visualization window (a8) arranges and is arranged on the panel beating cabinet (a5) in front; Optical transmission window (a9) is arranged on the pole body (a7) at panel beating cabinet (a5) rear portion; The make position of described visualization window (a8), optical transmission window (a9) and isolating switch on the same axis.
2. solid insulation ring main unit according to claim 1, is characterized in that: described fuse unit comprises fuse (b1), drive system (b2), striker mechanism (b3), fuse unit body (b4); Drive system (b2) comprises ground connection copper rod (b21); Striker mechanism (b3) comprises striker mechanism claw (b31) and strutting piece (b32), and fuse unit body (b4) comprises fuse unit (b41), ground connection cylinder (b42), Connection Block (b43), tube connector (b44), wire outlet seat (b45), outlet casing tube (b46), fuse unit base (b48); Fuse unit (b41) is tubular structure, ground connection cylinder (b42) is tubular structure, Connection Block (b43) is cuboid, tube connector (b44) is pipe, wire outlet seat (b45) is cylinder, its sidewall is " U " shape wall, and outlet casing tube (b46) has the truncated conical shape of screwed hole in being; Ground connection cylinder (b42), Connection Block (b43) and wire outlet seat (b45) are all arranged on the surface of fuse unit (b41); Tube connector (b44) is arranged on the end face of Connection Block (b43); Outlet casing tube (b46) is arranged on wire outlet seat (b45);
Fuse (b1) is arranged in the fuse unit (b41) of fuse unit body (b4); Striker mechanism (b3) is fixed on the nozzle of fuse unit (b41) by strutting piece (b31); The joint at fuse (b1) two ends is connected with fuse unit base (b48), striker mechanism claw (b32) respectively; Ground connection copper rod (b21) in drive system (b2) puts in the ground connection cylinder (b42) of fuse unit body (b4).
3. solid insulation ring main unit according to claim 2, it is characterized in that: described operating mechanism comprises isolator operating mechanism, circuit interrupter grounding switch integrated operating mechanism, described circuit breaker and earthed switch integral operating mechanism are used for the control of circuit breaker and earthed switch, and circuit breaker and earthed switch integral operating mechanism comprise energy-storage units, circuit breaker gear unit, earthed switch gear unit, support unit, on/off switch lock catch unit, on/off switch trip unit, interlocking unit;
On/off switch lock catch unit comprises combined floodgate semiaxis (4), breaker open operation semiaxis (1), grounding switch tripping semiaxis (8);
On/off switch trip unit comprises closing coil, breaker closing button (3), earthed switch switch knob (12), breaker open operation button (2), grounding switch tripping button (10); Interlocking unit comprises interlocking plectrum (11), interlocking spring;
Breaker closing button (3), earthed switch switch knob (12) are mechanically connected with combined floodgate semiaxis (4) respectively, breaker open operation semiaxis (1) and breaker open operation button (2) are mechanically connected, grounding switch tripping semiaxis (8) and grounding switch tripping button (10) are mechanically connected, and combined floodgate semiaxis (4), breaker open operation semiaxis (1), grounding switch tripping semiaxis (8) and circuit breaker gear unit, earthed switch gear unit are mechanically connected; Interlocking plectrum (11) is for locking breaker closing button (3) or earthed switch switch knob (12).
4. solid insulation ring main unit according to claim 3, is characterized in that: described earthed switch comprises ground connection vacuum interrupter (02), earthing bar connection inserting part (04), ground insulation rod assembly (06), ground connection are flexible coupling (05), circuit interrupter grounding switch integrated operating mechanism (07);
One end of described ground insulation rod assembly (06) is connected with ground connection vacuum interrupter (02) moved end bar and ground connection be flexible coupling (05) is pressed on the bar of ground connection vacuum interrupter (02) moved end, and the other end is connected with circuit interrupter grounding switch integrated operating mechanism (07) by connecting pin, transmission main shaft.
5., according to the arbitrary described solid insulation ring main unit of Claims 1-4, it is characterized in that: also comprise temperature transducer group, mechanical property transducer (006), signal transmission system, background processor; Described temperature transducer group, mechanical property transducer (006) are arranged in panel beating cabinet (a5) and corresponding parts are connected with the signal input part of signal transmission system, the signal output part of described signal transmission system is electrically connected with background processor, and described background processor is connected with panel beating cabinet (a5); Described temperature transducer group comprises bus temperature transducer (002), isolation temperature transducer (003), circuit breaker temperature transducer (004), cable temperature transducer (005); Described bus temperature transducer (002) is arranged on bus, described isolation temperature transducer (003) is arranged on isolating switch, described circuit breaker temperature transducer (004) is installed on-board the circuit breaker, and described cable temperature transducer (005) is arranged on line cable; Described mechanical property transducer (006) is arranged on the end of circuit breaker adjusting screw(rod).
6. solid insulation ring main unit according to claim 5, is characterized in that: described fuse unit body (b4) also comprises epoxy resin (b47); Fuse unit (b41), ground connection cylinder (b42), Connection Block (b43), tube connector (b44), wire outlet seat (b45) and outlet casing tube (b46) are built by epoxy resin (b47) and are formed.
7. solid insulation ring main unit according to claim 6, is characterized in that: described fuse unit body (b4) also comprises fuse outlet collar (b49), fuse inlet wire conductor (b4A) and cable outlet conductor (b4B);
Fuse unit base (b48) is cast in the inner bottom part of fuse unit (b41), and the inwall of fuse unit (b41) bottom is exposed on its surface;
Fuse outlet collar (b49) is (b491) cambered inwards pipe in the middle part of a kind of tube wall; Fuse outlet collar (b49) is cast in the barrel of fuse unit (b41), and the first boss (b411) on its position and fuse unit (b41) is corresponding; In the middle part of the tube wall of fuse outlet collar (b49), (b491) exposes the inwall of fuse unit (b41);
Fuse inlet wire conductor (b4A) is coaxial with Connection Block (b43); Fuse inlet wire conductor (b4A) is built and is fixed on tube connector (b44) middle part, and is connected with fuse unit base (b48) by the conductor be cast in fuse unit body (b4);
Cable outlet conductor (b4B) is coaxial with outlet casing tube (b46), and cable outlet conductor (b4B) is built and is embedded in outlet casing tube (b46); Cable outlet conductor (b4B) is connected with fuse outlet collar (b49) by the conductor be cast in fuse unit body (b4).
8. solid insulation ring main unit according to claim 7, is characterized in that: described visualization window (a8) comprises can viewport (a81), visual window (a82), visualization window baffle plate (a83); Wherein, can be had several by viewport (a81), be out the mouth on the panel beating cabinet (a5) in solid insulation ring main unit front; Can the position of viewport (a81) on panel beating cabinet (a5) and the isolating switch in panel beating cabinet (a5) make position on the same axis.
9. solid insulation ring main unit according to claim 8, is characterized in that: described visual window (a82) comprises fixed head (a821), visual window seal groove (a822), ground floor boss (a823) and second layer boss (a824); Described visual window seal groove (a822), ground floor boss (a823) and second layer boss (a824) are all processed on fixed head (a821); Visual window seal groove (a822) is for placing sealing ring; Ground floor boss (a823) is positioned at the enclosed region of visual window seal groove (a822), and the thickness of ground floor boss (a823) is equal with the thickness of fixed head (a821); Second layer boss (a824) is positioned on ground floor boss (a823), the edge shape of second layer boss (a824) with can the shape of viewport (a81) consistent, can in consistent manner second layer boss (a824) be entangled by viewport (a81).
10. solid insulation ring main unit according to claim 9, it is characterized in that: described energy-storage units comprises electric energy-stored unit, manual energy storage unit, energy-stored spring (9), driving gear set, described electric energy-stored unit comprises energy storage motor (7), energy storage travel switch, and described manual energy storage unit comprises power shaft, worm screw, worm gear; Described circuit breaker gear unit, earthed switch gear unit comprise a set of cam, quadric chain, output toggle arm respectively; Described driving gear set comprises the first gear (15-1), the second gear (15-2), the 3rd gear (15-3), the 4th gear (15-4), driving gear set is positioned on the upper surface of upper backup pad (14-1), first gear (15-1) engages with the second gear (15-2), second gear (15-2) engages with the 3rd gear (15-3), and the 3rd gear (15-3) engages with the 4th gear (15-4);
One end of described energy-stored spring (9) is connected with the second support column (16-2), the other end is connected by the bearing of connector with the first gear (15-1), energy storage motor (7) is arranged on the lower surface of lower supporting plate (14-3), and the rotating shaft of energy storage motor (7) is connected with the bearing of the 4th gear (15-4);
Described combined floodgate semiaxis (4) is arranged between upper backup pad (14-1) and middle supporting bracket (14-2), and one end is positioned at the side, upper surface of upper backup pad (14-1), breaker open operation semiaxis (1) is arranged between upper backup pad (14-1) and middle supporting bracket (14-2), and one end is positioned at the side, upper surface of upper backup pad (14-1), grounding switch tripping semiaxis (8) is arranged between lower supporting plate (14-3) and middle supporting bracket (14-2), and one end is positioned at the side, lower surface of lower supporting plate (14-3).
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| CN201410742245.1A CN104466777B (en) | 2014-12-05 | 2014-12-05 | A kind of solid insulation ring main unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703257A (en) * | 2016-04-18 | 2016-06-22 | 广东求精电气有限公司 | Solid insulation ring main unit |
| CN105846335A (en) * | 2016-05-10 | 2016-08-10 | 广东紫光电气有限公司 | A 12kV current-carrying 1250A solid insulated switchgear |
| CN106253069A (en) * | 2016-08-22 | 2016-12-21 | 屈荐映 | A kind of packet type switch system |
| CN111665417A (en) * | 2020-06-22 | 2020-09-15 | 广东电网有限责任公司东莞供电局 | Ring main unit fault acquisition device and method |
| CN115954772A (en) * | 2022-07-29 | 2023-04-11 | 华拓电力装备集团有限公司 | An intelligent high-pressure floor-standing metering box |
| CN117767162A (en) * | 2024-02-21 | 2024-03-26 | 霍立克电气有限公司 | Inflatable environment-friendly gas high-voltage switch cabinet with phase control function |
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| CN204333739U (en) * | 2014-12-05 | 2015-05-13 | 北京合锐赛尔电力科技股份有限公司 | A kind of solid insulation ring main unit |
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| JPH11285117A (en) * | 1998-03-27 | 1999-10-15 | Mitsubishi Electric Corp | Switchgear |
| CN202759183U (en) * | 2012-08-16 | 2013-02-27 | 北京清畅电力技术股份有限公司 | Intelligent solid insulating switch cabinet |
| CN104092142A (en) * | 2013-04-27 | 2014-10-08 | 石家庄科林电气设备有限公司 | Solid insulation ring network cabinet with visual windows on two sides |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703257A (en) * | 2016-04-18 | 2016-06-22 | 广东求精电气有限公司 | Solid insulation ring main unit |
| CN105846335A (en) * | 2016-05-10 | 2016-08-10 | 广东紫光电气有限公司 | A 12kV current-carrying 1250A solid insulated switchgear |
| CN105846335B (en) * | 2016-05-10 | 2018-02-02 | 广东紫光电气有限公司 | A kind of 12kV current-carrying 1250A solid insulation switch cabinets |
| CN106253069A (en) * | 2016-08-22 | 2016-12-21 | 屈荐映 | A kind of packet type switch system |
| CN111665417A (en) * | 2020-06-22 | 2020-09-15 | 广东电网有限责任公司东莞供电局 | Ring main unit fault acquisition device and method |
| CN111665417B (en) * | 2020-06-22 | 2021-11-12 | 广东电网有限责任公司东莞供电局 | Ring main unit fault acquisition device and method |
| CN115954772A (en) * | 2022-07-29 | 2023-04-11 | 华拓电力装备集团有限公司 | An intelligent high-pressure floor-standing metering box |
| CN117767162A (en) * | 2024-02-21 | 2024-03-26 | 霍立克电气有限公司 | Inflatable environment-friendly gas high-voltage switch cabinet with phase control function |
| CN117767162B (en) * | 2024-02-21 | 2024-05-07 | 霍立克电气有限公司 | Inflatable environment-friendly gas high-voltage switch cabinet with phase control function |
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